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Fusiform cells
• They are spindle-shaped cells arranged at right angles to the surface.
• The axon arises from the side of the cell body and expends superficially.
• Dendrites arise from each cell end and pass vertically into either deeper or
superficial layers.
Horizontal cells of Cajal
• They are small, spindle-shaped cells oriented parallel to the surface.
• They are superficially located, their axons extend laterally to synapse with
the dendrites of pyramidal cells.
Layers of cerebral cortex
• The cerebral cortex is made up of six different layers, which merge with
one another without any clear line of demarcation:
Molecular or plexiform layer
• It is the outer most layers and consists mainly of dendrites and axons of
underlying neurons.
• It also contains few neuroglia and occasionally horizontal cells of Cajal.
Outer granular layer
• It consists of dense population of small pyramidal and stellate cells as well
as axons and dendrites from deeper layers.
Outer pyramidal layer
• It consists of medium-size pyramidal cells.
Inner granular layer
• It consists of densely packed stellate cells.
Inner pyramidal (ganglionic) layer
• It consists of large pyramidal cells and smaller number of stellate cells.
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